【摘要】 为实现地质结构的可视化,提出一种地质体建模中不同层面之间的缝合方法。首先根据缝合需求,对各种缝合问题进行分类,作为缝合处理的基础。其次将待缝合边界进行均匀化处理,从而避免缝合后三角网格出现过度扭曲。然后通过边界点的投影距离寻找起始缝合点,并计算多连点数目,均匀插入缝合网格中,实现缝合曲面的构建。最后采用中点加点算法,对缝合后的三角网格进行密集化,使得整个地质体表面网格均匀,方便下一步进行三维地质体剖分。通过实验证明,该缝合方法简单易行、效果较好。更多还原

【Abstract】 In order to visualize geological structure, this paper introduces an algorithm to reconstruct the spaces among different layers in geology modeling. At first, according to different requirements, this paper catogories those problems, which acts as a foundation of surface reconstruction. Then, this paper uniformizes the edges of different layers to solve distortion of the triangle mesh. By projection, this paper searches for the starting points, then computes the number of multiconnect points, inserts them into the triangle mesh uniformly. Finnally, this paper uses the midpoints addition algorithm to make the triangle mesh dense, which can help the following three-dimensional Delaunay Triangulation. The method is tested to be easy to apply and can gain a better result.更多还原